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Large‐Deformation Behavior of Honeycomb‐Structured Polymer Sheets as a Function of Polar Angle
Jin, Kwang‐,Yong,Kim, Dae‐,Yoon,Kim, So‐,Eun,Kuo, Shiao‐,Wei,Lee, Joong Hee,Lyu, Min‐,Young,Hwang, Seok‐,Ho,Gent, Alan N.,Nah, Changwoon,Jeong, Kwang‐,Un WILEY‐VCH Verlag 2011 Macromolecular chemistry and physics Vol.212 No.9
<P><B>Abstract</B></P><P>To construct the structure/property relationships of patterned polymer architectures depending on symmetry, the large‐deformation behavior of 2D HSPS with respect to the polar angle was studied. Holes aligned along the HSPS apex were more effective in decreasing tensile force and reducing stress concentration than those located along the plane. On varying the polar angle from 0 to 30°, the tensile force fluctuated up and down like an undamped negative sinusoidal wave with a wavelength of 15°. Additionally, molecular orientations of HSPS were monitored in situ. By comparing experimental measurements with computer simulations, it was concluded that the tensile force depends on the number of holes as well as the orientation of the axes of the honeycomb structure. </P>